Commit 3c9aa321 authored by Nikolay Dimitrov's avatar Nikolay Dimitrov Committed by Thomas Petazzoni
Browse files

board: add support for RIoTboard 



This is a small development board, based on Freescale IMX6 Solo SoC
(single core ARM Cortex-A9). The board has excellent support in mainline
U-Boot and Linux.

Signed-off-by: default avatarNikolay Dimitrov <picmaster@mail.bg>
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
parent 591cb698

board/embest/riotboard/readme.txt

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Buildroot for Embest RIoTboard

==============================



1. Compiling buildroot

----------------------



make riotboard_defconfig

make



2. Installing buildroot

-----------------------



Prepare an SD-card and plug it into your card reader. Write the bootloader to

your SD-card:



sudo dd if=output/images/u-boot.imx of=/dev/sdX bs=1k seek=1



Create 1 partition on the SD-card using your favourite tool. The partition

should be big enough to hold your rootfs, for example 128MiB. Here's how an

example of such partition layout:



   Device Boot      Start         End      Blocks   Id  System

/dev/sdX1            2048      264191      131072   83  Linux



Format the SD-card partition with your favourite filesystem:



sudo mkfs.ext2 /dev/sdX1



Deploy your rootfs to the SD-card:



sudo mkdir /mnt/sdcard/

sudo mount /dev/sdX1 /mnt/sdcard/

sudo tar xf rootfs.tar -C /mnt/sdcard/

sudo umount /dev/sdX1



3. Running buildroot

--------------------



Position the board so you can read the label "RIoTboard" on the right side of

SW1 DIP switches. Configure the SW1 swiches like this:



10100101 (1 means ON position, 0 means OFF position)



Now plug your prepared SD-card in slot J6. Connect a serial console (115200, 8,

N, 1) to header J18. Connect a 5V/1A power supply to the board and enjoy your

new toy.

board/embest/riotboard/rootfs_overlay/boot/extlinux/extlinux.conf

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default buildroot



label buildroot

kernel /boot/uImage

devicetree /boot/imx6dl-riotboard.dtb

append console=ttymxc1,115200 root=/dev/mmcblk0p1 rw

configs/riotboard_defconfig

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# architecture

BR2_arm=y

BR2_cortex_a9=y

BR2_ARM_EABIHF=y



# system

BR2_TARGET_GENERIC_GETTY=y

BR2_TARGET_GENERIC_GETTY_PORT="ttymxc1"



# rootfs

BR2_TARGET_ROOTFS_EXT2=y

BR2_TARGET_ROOTFS_EXT2_2r1=y

BR2_ROOTFS_OVERLAY="board/embest/riotboard/rootfs_overlay"



# bootloader

BR2_TARGET_UBOOT=y

BR2_TARGET_UBOOT_VERSION="2015.01"

BR2_TARGET_UBOOT_BOARDNAME="riotboard"

BR2_TARGET_UBOOT_FORMAT_IMX=y



# kernel headers

BR2_KERNEL_HEADERS_VERSION=y

BR2_DEFAULT_KERNEL_VERSION="3.18"

BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_18=y



# kernel

BR2_LINUX_KERNEL=y

BR2_LINUX_KERNEL_CUSTOM_VERSION=y

BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.18"

BR2_LINUX_KERNEL_DEFCONFIG="imx_v6_v7"

BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0x10008000"

BR2_LINUX_KERNEL_DTS_SUPPORT=y

BR2_LINUX_KERNEL_INTREE_DTS_NAME="imx6dl-riotboard"

BR2_LINUX_KERNEL_INSTALL_TARGET=y